How to start a relationship

Im starting to have a crush on this older man. We already had sex but we both agreed to be friends & get to know each other before we start a relationship. But how ?

What are some tips & steps. To be good friends that can turn into a relationship.

How to get to know each other as friends & end off in a relationship?

We usually get food , go back to his house and watch movies take a nap. We only had sex twice I’ve hung around him plenty of times without sex

We haven’t went on a actual date yet. Only Sit by the water and drink. Ride downtown chill.

We both have no kids

Both have cars

I rent.

He owns his house.

He’s 34 Sagittarius

I’m 22 cancer